Tennis elbow is thought to be aggravated by the impact experienced when hitting the ball. The article Forces on the Hand in the Tennis One-Handed Backhand reported the force (Newtons) on the hand just after impact on a one-handed backhand drive for six advanced players and for eight intermediate players.Type Of playerSize Mean SDAdvanced845.312.1Intermediate1022.410.21) Calculate a 95% CI for the difference of true average for advanced players (µ1) and the true average for intermediate players (µ2).2) Does your interval provide good evidence for concluding that the two µs are different?3) Would you have reached the same conclusion by calculating a CI for µ2 − µ1 (i.e., by reversing the 1 and 2 labels on the two types of players)? Explain

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Description: Tennis elbow is thought to be aggravated by the impact experienced when hitting the ball. The article Forces on the Hand in the Tennis One-Handed Backhand reported the force (Newtons) on the hand just after impact on a one-handed backhand drive for s

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

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Tennis elbow is thought to be aggravated by the impact experienced when hitting the ball. The article Forces on the Hand in the Tennis One-Handed Backhand reported the force (Newtons) on the hand just after impact on a one-handed backhand drive for six advanced players and for eight intermediate players.

Type Of player	Size	Mean	SD
Advanced	8	45.3	12.1
Intermediate	10	22.4	10.2

1) Calculate a 95% CI for the difference of true average for advanced players (µ1) and the true average for intermediate players (µ2).

2) Does your interval provide good evidence for concluding that the two µs are different?

3) Would you have reached the same conclusion by calculating a CI for µ2 − µ1 (i.e., by reversing the 1 and 2 labels on the two types of players)? Explain

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